| 摘要 |
PROBLEM TO BE SOLVED: To enable improvement of reusability of a past processing result.SOLUTION: A storage device 1 stores the results R2 and R3 of second processing corresponding to input data sets D2 and D3 processed in the past. When an input data set D1 is specified, search means 2a searches the storage device 1 for the result R2 of the second processing corresponding to an input data set D2 overlapping with the input data set D1. Data processing means 3a obtains the result R2a of first processing corresponding to input data D2a of a difference included in the input data set D2 and un-included in the input data set D1, uses the result R2a of the first processing to eliminate an influence of the input data D2a of the difference from the searched result R2 of the second processing, thereby generating the result R1 of the second processing corresponding to the input data set D1. |
